#pragma once

#include<iostream>
#include<string>
#include<string.h>
#include<unistd.h>
#include<sys/time.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>

#include"log.hpp"
#include"err.hpp"

const static int backlog = 32;

class Sock
{
public:
    static int Socket()
    {
        int sock = socket(AF_INET,SOCK_STREAM,0);
        if(sock<0)
        {
            logMessage(FATAL,"creat socket err");
            exit(SOCKET_ERR);
        }
        logMessage(NORMAL,"create socket success: %d",sock);

        int opt=1;
        setsockopt(sock,SOL_SOCKET,SO_REUSEADDR|SO_REUSEPORT,&opt,sizeof(opt));
        return sock;
    }

    static void Bind(int sock,int port)
    {
        struct sockaddr_in local;
        memset(&local,0,sizeof(local));
        local.sin_family = AF_INET;
        local.sin_port = htons(port);
        local.sin_addr.s_addr = INADDR_ANY;

        if(bind(sock,(struct sockaddr*)&local,sizeof(local))<0)
        {
            logMessage(FATAL,"bind socket err");
            exit(BIND_ERR);
        }
        logMessage(NORMAL,"bind socket success");
    }

    static void Listen(int sock)
    {
        if(listen(sock,backlog)<0)
        {
            logMessage(FATAL,"listen socket err");
            exit(LISTEN_ERR);
        }
        logMessage(NORMAL,"listen socket success");
    }

    static int Accept(int listensock,std::string *clientip,uint16_t clientport)
    {
        struct sockaddr_in peer;
        socklen_t len = sizeof(peer);
        int sock = accept(listensock,(struct sockaddr*)&peer,&len);
        if(sock<0) logMessage(ERROR,"accept err,next");
        else
        {
            logMessage(NORMAL,"accept a new link success,get new sock:%d",sock);
            *clientip = inet_ntoa(peer.sin_addr);
            clientport = ntohs(peer.sin_port);
        }
        return sock;
    }
};
